Meghan Markle's estranged father Thomas has made another desperate plea for her to pick up the phone and get in touch to 'end his nightmare'.

The 74-year-old hasn't spoken to his daughter since she married Prince Harry in May.

The retired Hollywood lighting director says the wall of silence is making life a misery for him and his family.

Speaking to The Sun, Thomas said this time should be the 'proudest moments of his life' as the newlywed Duchess of Sussex prepares to welcome her first child in spring.

Meghan and her father Thomas Markle (Image: Instagram)

But he said: "It’s like a dream that has turned into a nightmare. The royals and Meghan can help end this nightmare by simply giving me a call. To this day, I cannot think of anything I’ve done to deserve how I’m being treated now.

"I’ve been a good father I’ve done nothing wrong. Axe murderers kill 19 people and their daughters still come and visit them in prison.

"It’s just incomprehensible for Meghan to treat me this way."

Thomas hasn't spoken to his daughter since she married Prince Harry in May last year (Image: Getty)

Thomas Markle hit out at the wall of silence from the Duke and Duchess of Sussex (Image: Reuters)

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Thomas wants to make contact before Meghan gives birth. He said: “There has to be a place for me. I’m her father and I will be the grandfather to the children, so all I can say is that I’m here, she knows it.

“I’m certainly hoping that everything goes well and they produce a beautiful baby and I’ll get to see a little Meghan or little Harry. That would be very nice and I look forward to that.

“I think she’ll make a great mum and maybe things will soften a little bit and we’ll connect again. I’ve reached out to her and I need her to reach back to me. I love her very much.”

Thomas, who lives in the US border town Rosarito in Mexico, said he didn't hear from his daughter over Christmas,

He added: “On Christmas Day I visited some friends and received a lot of phone calls from every relative I have — except my daughter. I was prepared for it.”

Instead, Mr Markle spent Christmas Day at a makeshift refugee camp in Rosarito.

He was pictured handing out toys and other Christmas presents to children living in poverty just 200 metres from the US-Mexico border.